Wait to buy out my aunt or buy now?

[Mo Nelson]

I recently graduated and have been working as a Junior Estimator for about 8 months. I just qualified for 300k FHA loan, so I have been looking for multi-family rental properties. I'm excited to get started but... I'm also inheriting a house fairly soon (3-6 months). I was initially the only person on the deed but now my grandmother has added my aunt onto the house (who wants to sell, I do not). This is a triplex that is paid off in full. This house need quite a bit of work but once fixed would most likely sell for 350k. I want to get started with investing but am not sure if I should wait to figure out what is going to happen with my aunt and see how much she is looking for to be bought out.. Should I just start now and deal with this later or wait it out?